When I try to download the Halo infinite beta and it says it is a duplicate code
Same here, submitted a ticket and still waiting for response
There was an issue with duplicate/invalid Steam keys earlier, resulting in codes having to be re-generated and published a few times. 343 have resolved this issue now and distributed new and working codes to everyone affected.
You can check for your new Steam key in one of these three places:
- Waypoint Beta (My Flights): https://beta.halowaypoint.com/halo-insider/flights… - Waypoint Message: https://halowaypoint.com/en-us/messages - Halo Insider (“My Flights” at the bottom): https://halowaypoint.com/en-us/halo-insider/profile